Package org.eclipse.rdf4j.federated.optimizer

Class NaryJoinArgumentsComparator

java.lang.Object

org.eclipse.rdf4j.federated.optimizer.NaryJoinArgumentsComparator

All Implemented Interfaces:

Comparator<TupleExpr>

public class NaryJoinArgumentsComparator
extends Object
implements Comparator<TupleExpr>

Comparator: partial order: OwnedStatementSourcePatternGroup -> OwnedStatementSourcePattern -> StatementSourcePattern

Author:

Andreas

Constructor Summary

Constructors

Constructor	Description
NaryJoinArgumentsComparator()

Method Summary

Modifier and Type	Method	Description
int	compare(TupleExpr a, TupleExpr b)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.Comparator

equals, reversed, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Constructor Details

NaryJoinArgumentsComparator

public NaryJoinArgumentsComparator()

Method Details

compare

public int compare(TupleExpr a,
 TupleExpr b)

Specified by:

compare in interface Comparator<TupleExpr>